REACTIVE DYES CONTAINING A PERMANENT QUATERNARY AMMONIUM GROUP

摘要

A fiber-reactive dye corresponding to formula (1), in which Fb is the radical of an azo dye, of a heavy metal complex azo dye, of a formazan dye, of a triphenodioxazine dye or of a phthalocyanine dye; R<x> is hydrogen, alkyl of 1 to 4 carbon atoms, unsubstituted or substituted by halogen, hydroxy, cyano, alkoxy of 1 to 4 carbon atoms, alkoxycarbonyl of 2 to 5 carbon atoms, carboxy, sulfamoyl, sulfo or sulfato; R4 has one of the meanings of R<x>; G is an aromatic, acyclic aliphatic or an alicyclic (C3-C6) group, where each group may have a carbon chain which for any of these groups the chain may be interrupted by one or more hetero groups, such as O, S, NH, SO2, CO, CO-NH or NH-CO; U<(+)> is a permanent quaternary ammonium group; Q is fluorine, chlorine, bromine, cyanoamino, pyridino, carboxypyridino, carbamoylpyridino or a group of general formula (2a) or (2b), in which R5 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, phenyl or cyclohexyl, W is substituted or unsubstituted arylene, alkylene or alkylene-arylene, Y is vinyl, or is ethyl substituted in the beta -position by a substituent which is eliminated by the action of an alkaline agent, Z is N or CH and forms together with the N atom a bivalent ring consisting of 1 or 2 alkylene groups having 1 to 5 carbons and optionally 1 to 2 hetero groups, r is zero or 1, s is 1 or 2, t is 1 or 2, and w is 1, 2 or 3; A<(-)> is a colorless anion and n is 1 or 2, with the proviso that the dye contains at least one group of the vinylsulfone series, such as a group of the formula: -SO2-Y with Y as defined above, these dyes being capable of dyeing hydroxy- and/or carboxamido-containing fibres, such as cellulosic fibre and wool.